No, AGH550 does not have the UV-C and Anion function, only the APH260 has. But AGH550 has a CADR rating of 324 CFM and Energy Star Rated, making it best for large spaces around 750 sq ft (living rooms & office).
When the replacement icon lights up (PM2.5 light turns RED and keeps flashing), it is a reminder to check and change the air filter. It’s recommended to replace the filter every 6-8 months for optimal use, or according to your air filter status.
After replacing the filter, press the FAN and TIMER button and hold for 3 seconds to cancel the reminder.
Anions are particles with one or more extra electrons, conferring a net negative charge to the particle. It's used to eliminate the occurrence of air-borne bacterial infections and to reduce static electricity buildup in electronics.
It speeds up the purification by absorbing pollen, dust and other airborne particles. When the anion function is on, it becomes an air ionizer that uses high voltage to ionize air molecules.
When the unit first powers on, the mode will be set to Anion Mode.
To switch on the Anion Mode, press the Anion button to activate the Anion Mode.
To switch off the Anion Mode, press the Anion button again to inactivate the Anion Mode.
UV-C refers to ultraviolet light with wavelengths between 200 - 280 nanometers (nm). It emits UV light to activate the titanium oxides to break down harmful viruses, bacteria and gases that HEPA and Carbon cannot capture. The UV light is installed inside the box to avoid people being exposed directly to the UV.
APH260 has been tested for electrical safety and ozone emissions, and complies with the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period(CARB indoor air cleaning devices safety).
CARB EO Number is G-18-110
The UV-C light is rated at 50,000 hours, or slightly longer than 5 years. There's no need to replace the UV light for normal maintenance.
To switch on the UV-C light, press the UV-C button to activate the UV-C Light Mode.
To switch off the UV-C light, press the UV-C button again to inactivate the UV-C Light Mode.
The PM2.5 Reading reflects the air particles quantity around, and it is constantly changing. When the air fluctuates, and the particles move, the dust sensor in the unit will detect this change and reflect it by number. For example, if you walk around the unit, the reading will change as the air fluctuates.
If you still have concerns, you can do a test to check whether the dust sensor can work properly. You can spray perfume towards the dust sensor to see whether its reading goes high immediately and return later. The dust sensor is on the back of the unit.
You could see three little holes there.
Keep surface of the sensor clean or sensitivity is affected and may fail to function properly. Recommended cleaning is once a month for regular use.
It absorbs smoke particles to the HEPA filter under anion mode. Then the 3 Filtration Stage True HEPA filter will filter all smokes out of fresh air. So yes, it removes the smell of smoke by catching all smoke chemicals from the air.
To enhance the purifying efficiency, the filter size of Airthereal Pure Morning is much larger than others. The downside is that when it captures more and more pollutants, it gets louder. There are two ways to improve the situation: one is to replace the air filter when the noise level is obviously louder. The other one is to turn sleep mode or lowest fan speed to denoise.
Normally, the noise level should be no louder than 42dB when it's at high-speed mode. This level of noise is equivalent to the sound of rain. When it's at low-speed mode or sleep mode, the noise level should be no louder than 22dB which is equivalent to the sound of dripping.
Ozone (O3) is a powerful sterilizer. When odors, bacteria or viruses meet ozone, oxidation reactions occur and both parties are destroyed. Ozone essentially reverts back to oxygen. Therefore, even though exposure to high concentrations of ozone could do harm to humans and pets, it won’t last long in the air. Just remember to open doors or windows to allow ventilation for at least 30 minutes after use. Or turn on the air conditioning during the treatment if you use it in the basement. It could sterilize the air-conditioning system as well.
Note: Ozone can adversely affect indoor plants, and damage materials such as rubber, electrical wire coatings and fabrics and art work containing susceptible dyes and pigments.
since the main reaction of ozone is strong oxidation, during the oxidation some polymer groups may have some negative effects such as PU plastics oxidation will turn yellow.
Before ozone treatments, please do some cleaning in order to remove the source of the odors. Close the windows and doors. Make sure nobody and no pets are in the room.
Step 2 - Use the timer
It's highly recommended to set the timer and leave it in the room. Treatment time can be adjustable according to the room size and air quality. If you have no clues, you can start with 15 min, and increase the treatment duration or frequency for the next time.
Step 3 - Unoccupied space ONLY
Exposed to high concentration of ozone can be harmful. Please stay outside the room being ozone treated. We include a NO ENTRY sign in the package as a gift, which can be hung on the door.
Repeat ozone treatments
You can take out your ozone generator and schedule an ozone treatment whenever you suffer from odor issues. Repeat it when air problems recurring.
Ozone Treatment Reference
50 ft² / 5 m²
Once a week
100 ft² / 10 m²
Twice a week
200 ft² / 20 m²
Twice a week
300 ft² / 30 m²
Once a week
500 ft² / 50 m²
Once a week
600 ft² / 60 m²
Twice a week
To remove tough odors, please increase treatment time and frequency until your problem solves.
If the mold on the wall is out in the open, such as visible on the wall, the ozone will kill the visible mold on the walls as well as the spores in the air. After several uses of the ozone machine, the mold will change color...gray to white, and you can then clean it off with bleach or sodium hypochlorite.
If the mold is behind the wall, it will not be exposed to enough ozone to eliminate it. So, if possible, you would have to eliminate the mold behind the wall in order to eliminate it permanently.
If you cannot remove the mold from behind a wall, you will need to use ozone periodically to kill the spores in the air as they form. That should prevent mold from growing elsewhere.
If your house is very humid or damp, despite using a dehumidifier, mold will likely form regularly. In that case, use the ozone regularly to kill the spores in the air.
1. Take out and wash the pre-filter at the back whenever it gets stuck by dust. Put it back when it's dry and that's all done.
2. Keep the unit in a cool and dry space when it's in storage.
3. The ozone plate is meant to be used for years. Only change the plate when the blue light on it gets much weaker than before and you could smell the ozone is much less as well. The ozone plate replacement is available for sale on Amazon and our website.
Clean or change the ozone plates if the ozone output is weak. Environmental factors affect the duration of ozone output. Unscrew the four screws on both sides of the machine. Press the handle, loosen the ozone holder, and draw out the ozone plate, clean it with water or replace it with a new one, make sure the plate is dry and the metal terminals contact well.
Please use an extension outlet when you run ozone generators inside the car. It needs to be plugged into an outlet.
Vehicle's air conditioning system can easily accumulate bacteria and dust, then the oxides in the ozone reaction may stay in the system and stink for a while. Therefore, we suggest you run the ozone generator in the vehicle for 10-15 minutes per use. Turn on the Recirculation Mode during the treatment and turn on the Fresh Air Mode after treatment, helping ventilation. As the sterilization and disinfection effect of cycle use is the best, frequent ozone treatment is the key to remove odors, instead of the long treatment.
The rubber, plastic, and upholstery in the vehicle may be oxidized during the treatment, but as the treatment time is short, it won't be a big problem, almost any influence.
I have to remind it again: please never run it when people, pets or plants are going to be present. It would be best to experiment with the lowest level of ozone output at first to see if it is irritating.
Many customers reported that the ozone generator is good for keeping the mustiness away in the basement.
Here are the points to note when using ozone machine in basement:
Turn on the air conditioning during the treatment if you use it in the basement. It could sterilize the air-conditioning system as well.
You only need the ozone in the basement won't vent out and expose to your family. Also, have to thoroughly air out all remaining ozone before you return to the basement. If you believe they are not able to make it air out thoroughly, please allow a longer time to consume the residual ozone before returning to the room. Normally, the ozone will need 4 hours to react and disappear completely, but depending on the ventilation.
If you can't smell the ozone when you are upstairs, you don't need to block heat or cold air duct return registers. Ozone can sterilize it as well.
Theoretically, in the 10m³ area with 10,000 mg/h output, the concentration of ozone is 166.67mg/m³ in 10 minutes, PPM will be 128.91ppm.
However, ozone is extremely unstable, it will quickly react with pollutants in the air and reverts back to oxygen. Therefore, its concentration is unstable and difficult to measure in daily used. Just remember to open doors or windows to allow ventilation for at least 30 minutes after use. Or turn on the air conditioning during the treatment if you use it in the basement. It could sterilize the air-conditioning system as well.
Because of ozone's strong oxidability, the plastics exposed to the ozone can easily break down and faded. Besides, pollution in the air, extreme heat, chemicals and salts are other known reasons for the breakdown of plastics.
We suggest you:
1. shorten the treatment time and don't place the ozone generator near the plastics things;
2. Cover the surface of the plastics things, and don't have them exposed to the ozone.
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